Meanwhile, Washington, D. C. — where Congress is debating over whether to pass a climate bill — is getting a memorable preview of what new computer models are predicting.
同时华盛顿特区-国会正在争辩是否通过气候法案，针对新电脑模型所预测的资料进行审核，这审核将更具意义。
‘It’s a Plan D, ’ he said. ‘It’s essentially an insurance policy for the situation where we hit a tipping point in climate change quickly.’
他说：“这是一个D计划（后备方案），它实质上是在气候变化太快时所采用的一种解决方案。”
B. The sea ice is melting earlier and forming later. C. The climate is changing due to people's activities. D. People killed too many polar bears.
文章最后一段讲述的是北极熊数量减少的原因，由于人类的活动引起气候变暖，因此使北冰洋的冰的面积减少，从而使北极熊的数量变少。
'it's a Plan d,' he said. 'it's essentially an insurance policy for the situation where we hit a tipping point in climate change quickly.'
他说：“这是一个D计划(后备方案)，它实质上是在气候变化太快时所采用的一种解决方案。”
Geologists suggest that these mountains may have had a major impact on the Earth's climate. -d.
地质学家提出这些山脉可能对地球的气候有重要影响。
Geologists suggest that these mountains may have had a major impact on the Earth's climate. -d.
地质学家提出这些山脉可能对地球的气候有重要影响。
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